Journal ArticleDOI
Chromosomal inversion polymorphisms and adaptation.
Reads0
Chats0
TLDR
A combined molecular and phenotypic approach is helping to identify the role of inversion polymorphisms in adaptive divergence, but the genes responsible for associations between traits and inversions polymorphisms remain to be identified.Abstract:
Chromosomal inversion polymorphisms continue to be identified from an increasing number of populations of insects, plants, bacteria and humans. In the fruit fly Drosophila, chromosomal polymorphisms were used in classic studies of natural selection. Recent molecular genetic studies suggest that inversion polymorphisms are dynamical systems. These studies also indicate patterns of disequilibrium and variation that are consistent with co-adapted gene complexes. Although these complexes have yet to be identified, recent studies have identified traits, such as body size, that are linked to inversion polymorphisms. Selection acting on these polymorphisms is strong because latitudinal clines in inversion frequency become re-established rapidly after a new continent is colonized. A combined molecular and phenotypic approach is helping to identify the role of inversion polymorphisms in adaptive divergence, but the genes responsible for associations between traits and inversion polymorphisms remain to be identified.read more
Citations
More filters
Journal ArticleDOI
Revisiting the Impact of Inversions in Evolution: From Population Genetic Markers to Drivers of Adaptive Shifts and Speciation?
TL;DR: There is a growing appreciation that chromosome inversions affect rates of adaptation, speciation, and the evolution of sex chromosomes, but few genes within inversions responsible for fitness effects or speciation have been identified.
Journal ArticleDOI
Challenges and opportunities of genetic approaches to biological conservation.
TL;DR: The future challenges and opportunities in genetic approaches to biodiversity conservation concern application of current genetic knowledge to the management of threatened species and the development of low cost genome sequencing offers many research opportunities and challenges.
Journal ArticleDOI
Eco-Evolutionary Genomics of Chromosomal Inversions.
TL;DR: The ubiquitous importance of inversions in ecological and evolutionary processes suggests that structural variation should be better acknowledged and integrated in studies pertaining to the molecular basis of adaptation and speciation.
Journal ArticleDOI
Advances and limits of using population genetics to understand local adaptation.
Peter Tiffin,Jeffrey Ross-Ibarra +1 more
TL;DR: Important limitations to population genetic analyses are highlighted including challenges with obtaining high-quality data, deciding which loci are targets of selection, and limits to identifying the genetic basis of local adaptation.
Journal ArticleDOI
doublesex is a mimicry supergene
Krushnamegh Kunte,Wei Zhang,Ayşe Tenger-Trolander,Daniela H. Palmer,Arnaud Martin,Robert D. Reed,Sean P. Mullen,Marcus R. Kronforst +7 more
TL;DR: It is shown that a single gene, doublesex, controls supergene mimicry in Papilio polytes, in contrast to the long-held view that supergenes are likely to be controlled by a tightly linked cluster of loci.
References
More filters
Journal ArticleDOI
Progress in invasion biology: predicting invaders
Cynthia S. Kolar,David M. Lodge +1 more
TL;DR: Although restricted to few taxa, these studies reveal clear relationships between the characteristics of releases and the species involved, and the successful establishment and spread of invaders.
Book
Genetics of the Evolutionary Process
TL;DR: The Unity and Diversity of Life as discussed by the authors is a belief in the diversity of life and diversity of species in the world, and it has been shown that diversity can be achieved by balancing selection and genetic load.
Journal ArticleDOI
Rapid evolution of a geographic cline in size in an introduced fly.
TL;DR: The introduction and rapid spread of Drosophila subobscura in the New World two decades ago provide an opportunity to determine the predictability and rate of evolution of a geographic cline, but different wing sections dominate the New versus Old World clines.
Journal ArticleDOI
A Polytene Chromosome Analysis of the Anopheles gambiae Species Complex
Mario Coluzzi,Adriana Sabatini,Alessandra della Torre,Maria Angela Di Deco,Vincenzo Petrarca +4 more
TL;DR: In this paper, field-collected specimens of all known taxa in the Anopheles gambiae complex were analyzed on the basis of chromosome inversions with reference to a standard polytene chromosome map.
Journal ArticleDOI
Opposing clines for high and low temperature resistance in Drosophila melanogaster.
TL;DR: Latitudinal variation in heat and cold resistance in Drosophila melanogaster found opposing clines in resistance to these temperature extremes in comparisons of 17–24 populations from coastal eastern Australia, suggesting both high and low temperature responses can vary with latitude as a consequence of direct or indirect effects of selection.